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Slack MCP Server

API key required

Catch up on Slack without reading it. Unreads, threads, search. Browser-session or hosted OAuth.

To add Slack MCP Server to Claude, run the install command below or copy the ready-made config for Claude Code, Claude Desktop, Cursor and VS Code further down. Restart your client after adding it and its tools show up in your next conversation. It needs 2 environment variables, listed below.

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Install

npx -y @jtalk22/slack-mcp@5.1.0

Environment variables

SLACK_TOKENSet in your MCP config
SLACK_COOKIESet in your MCP config

Install with your client

Terminal
claude mcp add slack --env SLACK_TOKEN=<YOUR_SLACK_TOKEN> --env SLACK_COOKIE=<YOUR_SLACK_COOKIE> -- npx -y @jtalk22/slack-mcp@5.1.0

Run this in a terminal to add the server to Claude Code.

What this does

Slack MCP Server exposes a set of tools to Claude over the Model Context Protocol. After you add it to claude_desktop_config.json (snippet above) and restart Claude Desktop, those tools become callable inside any conversation.

Requirements

This server needs the following environment variables to be set before it can run:

SLACK_TOKEN
SLACK_COOKIE

Set these via the env object in your MCP config (see claude_desktop_config.json snippet above).

Frequently asked questions

How do I install Slack MCP Server?

Run the Claude Code command in the install section to add Slack MCP Server to Claude Code, or copy the ready-made config for your client from the install section on this page. Restart your client afterwards and the tools appear in your next conversation.

Which clients work with Slack MCP Server?

This page carries setup and config for Claude Code, Claude Desktop, Cursor and VS Code. Any other MCP client that accepts a standard server config can connect to Slack MCP Server as well.

Does Slack MCP Server need an API key?

Yes. Before it can run, set these environment variables: SLACK_TOKEN, SLACK_COOKIE. They go in the env block of your MCP config.

Imported from the Official MCP Registry. The details above come from the registry entry; the maker can claim this listing to correct them, add docs, and see its traffic.

Is this your MCP server?

Claim this listing to see its traffic, fix details yourself, and skip the review queue on future updates.

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